An observer moves towards a stationary source of sound with a speed 1/5th of the speed of sound. The wavelength and frequency of the source emitted are λ and f respectively. The apparent frequency and wavelength recorded by the observer are respectively 

(1) 1.2f,λ

(2) f,1.2λ

(3) 0.8f,0.8λ

(4) 1.2f,1.2λ

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